Math week

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Across
  1. 2. A device for measuring temperature.
  2. 5. A second, a minute. hour - that's what you see
  3. 7. A geometric body resembling a ball.
  4. 9. A geometric figure that has two right angles and three obtuse angles.
  5. 10. off Increasing or decreasing numbers to even tens. Hundreds or thousands
Down
  1. 1. After multiplying the length and width of the geometric figure, it is calculated
  2. 3. 60 minutes it is
  3. 4. It is a simplified composition
  4. 6. A device for measuring weight.
  5. 8. What is the name of an angle that is less than a right angle?